Referendum

(1) A popular referendum shall be held to decide on the total or partial abrogation of a law or an act having force of law, when requested it is by five hundred thousand voters or five Regional Councils.

(2) Referendum shall not be admissible in the case of tax, budget, amnesty and pardon laws, or laws authorizing the ratification of international treaties.

(3) All citizens eligible to vote for the Chamber of Deputies shall have the right to participate in referendum.

(4) The proposal subjected to a referendum shall be approved if the majority of those eligible have participated in the vote and if it has received a majority of valid votes.

(5) The procedures for conducting a referendum shall be established by law.